Department Mathematik

FAU Erlangen-Nürnberg

Cauerstr. 11, D-91058 Erlangen

Phone (+49) 9131 85-67015

Office 01.316

bartvs at math dot fau dot de

**Papers**
*Quasi-Hamiltonian model spaces* [arXiv] (with Kay Paulus)
*Multiplicity free U(2)-actions and triangles* [arXiv] (with Oliver Goertsches and Nikolas Wardenski)
*Momentum polytopes of projective spherical varieties and related Kähler geometry* [article, arXiv, view-only] (with Stéphanie Cupit-Foutou and Guido Pezzini), Selecta Mathematica, New Series 26 (2020), 27.
*Combinatorial characterization of the weight monoids of smooth affine spherical varieties* [article, arXiv] (with Guido Pezzini), Transactions of the American Mathematical Society 372 (2019), 2875-2919.
*On some families of smooth affine spherical varieties of full rank* [article, arXiv] (with Kay Paulus and Guido Pezzini), Acta Mathematica Sinica, English Series 34 (2018), 563-596.
*Nilpotent matrices having a given Jordan type as maximum commuting nilpotent orbit* [article, arXiv] (with A. Iarrobino, L. Khatami and R. Zhao), Linear Algebra and its Applications 546 (2018), 210-260.
*Equivariant degenerations of spherical modules: part II* [article, arXiv] (with Stavros Papadakis), Algebras and Representation Theory 19 (2016), 1135-1171.
*The moduli scheme of affine spherical varieties with a free weight monoid* [article, arXiv] (with Paolo Bravi), International Mathematics Research Notices 2016 (2016), 4544-4587.

*Equivariant degenerations of spherical modules for groups of type A* [article, arXiv] (with Stavros Papadakis), Annales de l'Institut Fourier 62 (2012), 1765-1809

*Propositional systems, Hilbert lattices and
generalized Hilbert spaces* [chapter, pdf]
(with Isar Stubbe),
Handbook of Quantum Logic and Quantum Structures (2007), 477-523, edited by D.
Gabbay, D. Lehmann and K.
Engesser, Elsevier

*Classification of smooth affine spherical varieties* [article, arXiv] (with
Friedrich Knop),
Transformation Groups 11 (2006), 495-516

Reviews of my papers on MathSciNet, including older ones

**Report**

*Various interpretations of the root system(s) of a spherical variety* [pdf], extended abstract for Oberwolfach Mini-Workshop on Spherical Varieties and Automorphic Representations (12 May - 18 May 2013), Oberwolfach Reports 10 (2013), 1464-1467 [full report]

**Seminars**

Emmy Noether Seminar

**Conferences**

Algebraic transformation groups: the mathematical legacy of Domingo Luna, Università La Sapienza, 28-30 October 2019

Geometry and Representation Theory of Algebraic Groups, Physikzentrum Bad Honnef, 5-9 March 2018

A hometown quote: "Dei Ingelse zèn zot. Ze schraive: street. Ze zegge: striet, en ze willen hemme: strôt." (De Standaard, 30 maart 2001)